Nut-lock.



ML 6. BITTENCOURTT.

NUT LOCK.

APPUCATION FILED NOV- 23, 1915 Patented July 11, 1916.

MANUEL Gr. BITTEINGOURTT, OF ORLEANS, LOUISIANA.

NUT-LOCK.

Specification of Letters Patent.

Patented July 11, 1916.

Application filed November 23, 1915. Serial No. 62,989.

To all whom it may concern:

Be it known that I, MANUEL G. BITTEN- oounr'r, a citizen of the United States, residing at New Orleans, Louisiana, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

My invention is especially adaptable to railway track construction, and its principal object is to provide a lock for a track bolt nut which will be exceedingly strong, secure and positive.

The accompanying drawing shows one exemplifying form of the invention, but it is to be understood that I contemplate varying the construction as to details and do not limit myself except as claimed hereafter.

Figure 1 is a transverse section through a rail and fish-plates, showing a nut-lock of my invention applied to the track bolt nut. Fig. 2 is a plan view of the same. Fig. 3 is a perspective view of the lock apart from the rail bolt or nut.

R designates a rail; F fish-plates; B a bolt, and N a nut thereon.

To look the nut and prevent it from rotating, the .invention consists in a frame or chair 1 having a base 2 to rest upon the rail or fish-plate, as seen in Fig. 1. The base is provided with an upright member 3 having a hole 4:. The upright 3 lies against the fishplate, as in Fig. 1, and the hole 4 accommodates the bolt. The base 2 also carries another upright 5 having a hole 6 and circumthe parallel sides thereof. When the nut is properly screwed up the lock or jaw 8 is placed upon it and the jaw is then prevented from rotating by pin 9, which engages a hole 10 in the jaw and a convenient one of the sockets 7 In this way the jaw is strongly and positively prevented from rotating and in turn holdsthe nut with great security. The pin 9 may be a drive fit or may be screwed in the jaw or otherwise suitably secured.

For convenience, the jaw 8 may be loosely secured to the chair 1 or to a part thereof. In the present embodiment this is done by means of a ring 11 of suitable size freely engaging holes 12 in upright 5 and in the jaw respectively. In this way the appropriate jaw may be secured to the chair and may be easily swung around upon the ring and put in position when the nut is set up. T tween uprights 3 and 5 is such as to permit application of a track wrench to the nut.

I claim 1. A. nut lock for track construction and the like, comprising a chair having uprights to embrace a nut, said uprights being provided with holes to accommodate a track bolt, one of the uprights being provided with notches, a jaw to engage the nut and a pin to engage the jaw and a suitable one of said notches.

2. A nut lock for track construction and the like, comprising a chair having uprights to embrace a nut, said uprights being provided with holes to accommodate a track bolt, one of the uprights being provided with notches, a jaw to engage the nut and a pin to engage the jaw and a suitable one of said notches, and a ring loosely connecting the jaw with one of said uprights.

MANUEL G. BITTENCOURTT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

he space be- 

